Should I purchase the AutoTune module, or have my vehicle custom tuned on a dyno?

The AutoTune module does give an end user the accessibility and capability to custom tune a Power Commander map file, as accurately as a professional dyno tuner using the Bosch LSU 4.2, 5-wire, wideband O2 sensors for exhaust gas analyzation. Some users may find that having a professional tuner setup everything as needed (including the AutoTune feature) is necessary. As a professional tuner is only as good as the equipment he/she uses, the equipment is only as good as the person using it also.